National Journal reporters discuss the new rules that Republican candidates want imposed on future debates, Rubio's recent rise in the polls, and whether Bernie Sanders could ever go negative.
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Adam Wollner is an analyst for National Journal Hotline. Previously, he covered politics as an intern for NPR and the Center for Public Integrity. A native Wisconsinite, Wollner graduated from the University of Wisconsin-Madison in 2013 with a bachelor degree in journalism and political science.